| Qiu Tianyi,Zhang Guoqing,Wang Minjuan,Li Tianlai,Wang Boyu,Liu Yang,Li Boning,Yuan Lin.Development of environmentally friendly flexible medical X-ray shielding materials and analysis and optimization of their protective performance[J].Chinese Journal of Radiological Medicine and Protection,2023,43(12):1016-1021 |
| Development of environmentally friendly flexible medical X-ray shielding materials and analysis and optimization of their protective performance |
| Received:April 13, 2023 |
| DOI：10.3760/cma.j.cn112271-20230413-00117 |
| KeyWords:X-ray shielding Flexible material Thermoplastic elastomer Monte Carlo |
| FundProject:西安市科技计划项目(22GXFW0042);陕西职业病危害工程防护项目-技术成果转移转化项目(SXCDC-GCFH-2022-02);陕西省教育厅重点科研计划项目(22JC034) |
| Author Name | Affiliation | E-mail | | Qiu Tianyi | School of Science, Xi'an Polytechnic University, Xi'an 710048, China | | | Zhang Guoqing | School of Science, Xi'an Polytechnic University, Xi'an 710048, China | | | Wang Minjuan | Department of Radiology, Third Affiliated Hospital of Xi'an Medical University, Xi'an 710021, China | | | Li Tianlai | Radiology and Occupational Health Institute, Shaanxi Provincial Centre for Disease Control and Prevention, Xi'an 710054, China | | | Wang Boyu | School of Science, Xi'an Polytechnic University, Xi'an 710048, China | | | Liu Yang | School of Science, Xi'an Polytechnic University, Xi'an 710048, China | | | Li Boning | School of Science, Xi'an Polytechnic University, Xi'an 710048, China | | | Yuan Lin | School of Science, Xi'an Polytechnic University, Xi'an 710048, China | yuanlin@xpu.edu.cn |
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| Abstract:: |
| Objective To develope and analyze and optimize the performance of some kinds of environmentally friendly flexible X-ray protective materials in attempt to tackle the various environmental and high energy consumption problems in the development of traditional medical X-ray protective clothing.Methods The Monte Carlo program was used to establish a simplified model of medical X-ray tube. The aim was to carry out numerical simulation and prediction of the shielding materials' performance against X-ray, prepare the flexible X-ray shielding materials through experiments and test and verify the their shielding performances The development and optimization path was also obtained by comparing the result between simulation and experiment.Results Bi was the preferred alternative to toxic Pb elements, while W was able to compensate for weak X-ray absorption zone of Bi. The shielding efficiency of the composite material doped with 25% Bi+25% W was able to reach 77.8% and 66.3% at 80 and 120 kVp tube voltages, respectively.Conclusions With both the selection of elements and the optimization of functional particles, the combination of W and Bi is an economical, environmentally friendly, and efficient shielding way within the energy range of medical diagnostic X-rays. The numerical simulation helps reduce experimental costs, shorten the research period, and improve the design efficiency of X-ray shielding materials. |
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